Botjkne



UNITED STATES {PATENT OFFIGE.

ROBINSON W. SHELBOURNE AND JAMES H. SUBLEIT, OF BLANDVILLE, KENTUCKY.

PLOW.

SPECIFICATION forming part of Letters Patent No. 377,646, dated February"7, 1888.

Application filed August 4, 1887. Serial No. 246,148. (No model.)

To all whom, it may concern.-

Be it known that we, ROBINSON W. SHEL- BOURKE and JAMES H. SUBLETT, bothresidents of Blandville, in the county of Ballard 5 and State ofKentucky, have in vented certain new and useful Improvements in Flows;and we do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification,and in which Figure Us a perspective view of our new and improved plow.Fig. 2 is a side view of the same, taken from the land side thereof.Fig. 3 is a perspective view of the inner or form plates of the plowwith the mold-board and cutter removed from the same; and Fig. 4 shows ablank from which two of the metal form-plates, which are bent to formthe inner body of the plow, are cut.

The same letters of reference indicate corresponding parts in all'thefigures.

Our invention consists in a new and improved plow, which will behereinafter fully described and claimed.

Referring to the several parts by letter, A indicates the metal plateout of which the landside B and the flange G are formed, on which themold-board is bolted, the blank or pattern A being cut with suitableshears out of a sheet or plate of metal, as shown in Fig. 4 of thedrawings, the blanks A being so shaped that they may be out out of themetal plate without any waste, as clearly shown in the said view, exceptthat of the small squares a a,where the opening for the upright orstandard of the plow is left. These blanks A are then split a little ata a, at the top and bottom of what may be called the throat of the plowform, and are then bent into the requisite form by placing each blank(the blanks being formed of a steel plate) while hot over asuitablyshaped matrix and forcing a convex angular die of sufficientweight down over the hot steel plate, which forms the said plate to thedesired shape, (shown in Fig. 3 of the drawings,)when thelandside B,with its curved'longitudinal 5o flange O, is finished and ready to beembodied in the plow by having the mold-board and the cutter, with theseparate point, secured to it, together with the standard, ashereinafter described.

E indicates the mold-board of our improved plow, which is alsoconstructed out of steel plates susceptible of high temper, which isboard, which-come in direct contact with the soil. The wing of themold-board is preferably of the shapeand curvature shown in theaccompanying drawings. The upper part or wing, F, of the mold-board isbolted to or upon the flange 0, while the lower section or point of themold-board is bolted both to the lower end of this flange C and to thelower forward end, B, of the landside, being formed on its inner side oredge with the downwardly-bent flange G, inside of which the said pointofthe landside extends and to which it is bolted.

H indicates the cutter of our new and imgiven to these outer platesforming the moldproved plow, which is formed of ahighly-tenr pered steelplate, which is bolted to the landside B by three bolts, I, when thecutter-plate is formed in one piece, as shown in full lines in theaccompanying drawings, so that the entire cutter may bev removed,detached, and changed for repairwithout stopping the plow togo to theshop by merely loosening the three bolts; or, if preferred, we canconstruct the cutter in two pieces, dividing the cutter-plate on theslanting or inclined dotted line shown in Fig. 2 of the drawings, inwhich case the rear section of the cutter-plate is secured to thelandside by three bolts, while the forward section, which is formed withthe beveled and sharpened cuttingedge, is retained in place against thelandside by two bolts only, so that it can be readily removed to besharpened, &c., merely by loosening the said two bolts. The forwardupper part of the cutter-plate extends out straight in advance of theinner side of the moldboard of the plow, as shown, its

forward inclined edge, H, being beveled and sharpened for its entirelength, to adapt it to cut readily and easily through sods, roots,

&c., while the upper rear' edge of the cutterpoint K is welded to theforward end of the landside and the forward end of, the inner flange, G,of the lower part'o f the mold-board, so as to face with thecutter-plate--that is to say, lies in the same vertical plane with theIOC cutter-plate and forms, practically, an extension of the same. Theupper rear edge of this point K is beveled and sharpened and forms acontinuation of the cuttingedge of the cutter-plate, joining squarelywith it, and thus brings the cutting-edge down as close or near as isadvantageous to the point of the plow.

L indicates the upright standard of the plow, which is bolted to theinside of the landside, and to which the upper end of the cutter-plateis also bolted, this standard being preferably formed of a straight flatmetal bar, as shown, although its precise form may of course be altered,if desired.

It will be seen that we thus construct a plow of steel plates, the outerplates, which comein direct contact with the soil, being given a hightemper, while the under or form plates may be left soft or in theirannealed condition, thereby forming a plow which is capable of resistingthe greatest force or strain from the toughness of these unhardenedinner plates, while the hardened outer plates, which come in directcontact with the soil, are rendered unsusceptible to wear, so that ournew and improved plow as thus constructed is exceedingly durable andwill last fora very long time under the most severe usage.

The cutter-pointK is secured by two bolts, and can be removed for repairor sharpening by merely loosening these two bolts, and can thus bereplaced in the field with but little delay.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and many advantages of ourinvention will be readily understood. It will be seen that we succeed inconstructing a plow which is exceedingly strong and durable and veryefficient in its operation. The operative parts can all be removed forrepair in a short time and with little trouble, and the cuttingedges canbe sharpened and the several parts replaced, as described.

Our new and improved plow, with its improved cutter, is applicable toany kind of work, from coltering new ground with a heavy team to sidingspring corn with one horse, the projecting cutter-blade throwing all ofthe dis placed clods onto the wing of the mold-board, the inclination ofwhich throws the clods to one side sufficiently far to be out of theway, doing the work in a superior manner and without attention from theplowman.

Our new and improved plow is exceedingly strong and durable, is fullysusceptible of repairs, and is exceedingly effective in its operation,lessening the draft materially, from twenty-five to thirty-three percent.

When using our improved plow in turf, tobacco stubble, or in any suchwork, it turns the earth or soil without displacement, except on themoldboard side or turning side of the plow, so that in siding young cornorother small plants the dirt is thrown entirely away from it, so thatthere is no danger of covering the small and tender plants with clodsthrown or pushed to the wrong side by the plow, which never occurs.

Having thus described our invention, what we claim, and desire to secureby Letters Patent of the United States, is

1. A blank for forming the landside and flange of a plow, consisting ofa rectangular plate having a split at one corner and an open ing orsquare recess at the opposite corner, the end of the plate having therecess being extended to form the bar, substantially as shown anddescribed.

2. In a plow, the combination of aback portion consisting of one pieceforming the landside or bar and a curved portion bent laterally fromsaid landside portion, said piece being split at its lower point, amold-board secured to the upper part of the curved portion, a sharesecured to the lower part and to the point of the landside, a plate orcolter secured to the landside, and a standard, substantially as shownand described.

In testimony that we claim the foregoing as our own we have hereuntoaffixed our signatures in presence of two witnesses.

ROBINSON W'. SHELBOURNE. JAMES H. SUBLETT.

Witnesses:

THOMAS LINTHIGUM, \VILLIAM Y. HUsBANDs.

